Specification: Engine Type: 3/4" Shaft Horizontal Max Pressure: 3000 Max Flow Rate (gallon/min): 2.5GPM Plunger: Stainless Steel Plunger seals: Oil Seals Connection: Inlet--3/4'' 14NH Garden Hose (Not 3/4 in. - 11 1/2 NH) Outlet--M22x1.5-14mm Rated RPM: 3400 Compatible with 3/4" Horizontal Shaft Pressure Washer & Engine: Up to 3000 PSI. If you don't see your model below, just message us and we will confirm it for you! .